Remove the bundled libraries from the build.
diff -ru oletools-0.55.orig/setup.py oletools-0.55.new/setup.py
--- oletools-0.55.orig/setup.py	2019-12-03 23:31:25.000000000 +0000
+++ oletools-0.55.new/setup.py	2019-12-04 20:55:09.904293977 +0000
@@ -92,7 +92,6 @@
     "oletools.common.log_helper",
     'oletools.thirdparty',
     'oletools.thirdparty.xxxswf',
-    'oletools.thirdparty.prettytable',
     'oletools.thirdparty.xglob',
     'oletools.thirdparty.tablestream',
     'oletools.thirdparty.oledump',
@@ -177,9 +176,6 @@
     'oletools.thirdparty.xxxswf': [
         'LICENSE.txt',
         ],
-    'oletools.thirdparty.prettytable': [
-        'CHANGELOG', 'COPYING', 'README'
-        ],
     'oletools.thirdparty.DridexUrlDecoder': [
         'LICENSE.txt',
         ],